Help
Options
Didn't know it?
click below
click below
Knew it?
click below
click below
Don't Know
Remaining cards (0)
Know
retry
shuffle
restart
0:00
Embed Code - If you would like this activity on your web page, copy the script below and paste it into your web page.
Normal Size Small Size show me how
Normal Size Small Size show me how
Positioning Quizzes
Radiographic Positioning Quizzes
| Question | Answer |
|---|---|
| The cavity in the hipbone that articulates with the femoral head is called the | acetabulum |
| The hip bone consists of what three parts? | Ischium, Pubic bone, and Ilium |
| The ilium and sacrum articulates at the _________ joint | Iliosacral |
| The junction of what 2 bones forms the obturator foramen of the pelvis? | Ischium and Pubic bone |
| Name the bones that make up the pelvic girdle | Right and Left Hip bones |
| Name the bones that make up the pelvis in an adult | Sacrum, Coccyx, Right and Left Hip |
| The prominent ridge extending between the tochanters at the base of the neck on the posterior surface of the femur is the | intertrochanteric crest |
| Name one or more structures that may be helpful in order to evaluate rotation on an AP pelvis radiograph (not proximal femur) | Symetry of the Obturator formina or Ischial spines, and alignment of the Coccyx and Pubis symphisis. |
| How much do you medially rotate the feet and lower limbs to place the femoral necks parallel with the plane of the IR on an AP projection of the pelvis? | 15-20 degrees |
| What position, projection or method is useful in diagnosing fractures of the acetabulum? | Judet (axiolateral) |
| What is the projection of the Modified Cleaves often called? | Frog leg |
| Do you see the lesser trochanter with the Modified Cleaves method? | Yes |
| What projection/position of the hip best demonstrates the greater trochanter in profile? | AP hip/pelvis |
| The angulation of the tube for the axiolateral projection (Danelius-Miller Method) is angled perpendicular to what structure? (not the film) | Femoral Neck (and IR) |
| Where is the central directed for the unilateral frog-leg? | Femoral Neck |
| The largest sesamoid bone in the body is the | patella |
| The tube angle for the Camp Coventry method for the PA axial (knee) is | 40 degrees |
| In order to better visualize the joint space in the AP projection of the knee on a large patient, the central ray should be angled how many degrees and in what direction? | 3-5 degrees cephalic |
| In the Be'clere position the patient is placed (supine, prone, or lateral)? | Supine |
| The centering point for the AP of the knee is | 1/2" distal from apex of Patella |
| This acts as a shock absorber in the knee | Meniscus |
| In the AP projection of the proximal femur, the foot should usually be slightly rotated internally ________ degrees. | 15-20 |
| Which projection of the patella provides sharper recorded detail, AP or PA? | PA |
| What is the name of the prominence on the posterior aspect of the femur that forms the popliteal surface? | Linea Aspera |
| What is the protrusion on the anterior side of the proximal tibia called where the patellar ligament inserts | tibial tuberosity |
| When looking at a lateral ankle radiograph, how do you determine if it is rotated | the talar domes should be superimposed and there should be superimposition of the posterior tibia |
| Is the sustentaculum tali on the medial or lateral side of the calcaneus | medial |
| The lateral malleolus is part of this bone | fibula |
| The fibula articulates with the condyles of the femur (T or F?) | False |
| When doing an oblique ankle that is for the mortice, how much do you rotate the leg and in which direction | 15-20 degrees medial rotation |
| Describe how to position a tib/fib for an AP | condyles should be parallel to IR and foot should be AP |
| Where is the centering point on an AP projection of the ankle | ankle joint |
| If an x-ray of the toes are requested, how much do you angle your tube on the AP axial projection to open the joint spaces | 15 degrees |
| If an x-ray of the foot is requested, how much do you angle your tube for an AP projection which opens the joint spaces | 10 degrees |
| On an AP oblique projection of the foot, which oblique and how many degrees obliquity is most often performed | 30 degrees medial oblique |
| When doing an AP oblique projection of the foot which rotation best demonstrates the sinus tarsi | medial rotation |
| Where is the central ray directed for the lateral first toe | IP |
| Where is the central ray directed for the AP foot | base of the 3rd metatarsal |
| To obtain an axial projection of the calcaneus, the number of the degrees the central ray is angled____ when the long axis of the foot is perpendicular to the plane of the IR | 40 degrees |
| Name a Trochoid (pivot) joint | C1,C2 joint or Radioulnar joint (proximal and distal) |
| What is the position if the patient is laying on their stomach? | prone |
| What is the position called if the patient is 45 degrees rotated so that the right side is against the IR and the left side is rotated forward? | RPO -right posterior oblique |
| What is the projection/position if the patient is laying on their left side? | Left lateral decubitus |
| What is the projection called of the side view of a part? | Lateral |
| The crest is at what vertebrae level? | c4-c5 |
| The axial skeleton includes ____________ | spine/ribs/skull |
| What is the position called if the patient is 45 degrees rotated so that the left side is against the IR and the right side is rotated forward? | LPO - left posterior oblique |
| What is the position called if the patient is 45 degrees rotated, facing the IR so that the right side is against the IR and the left side is rotated closer to the tube? | RAO - right anterior oblique |
| What two will be the same image? AP projection/PA projection/ Lateral projection / Lateral radiograph | AP and PA projection |
| How many radiographs are taken for routine for a long bone? | two |
| Name three controlling factors of Distortion | OID, SID, and CR alignment |
| The recorded sharpness or detail of structures on the image is called | resolution |
| The smallest unit in a digital image matrix | pixel |
| Why do you roll the shoulders forward on a PA chest? | to move the scapulae out of view of the lungs |
| What is the centering point for a PA chest? | T7 vertebrae (jugular notch) |
| Why is at PA chest taken from 72"? | to not magnify the heart |
| How do you detect rotation on a PA chest? | symmetry of spinous processes |
| How do you detect rotation on a Lateral chest? | ribs should be superimposed |
| Why is a PA upright of the chest preferred to an AP upright chest? | Heart shadow is less visible |
| What kV would be used to produce a chest radiograph (PA or Lat) in the radiology department department using an upright chest bucky with a grid? | 100-130 kVp |
| The angle of the CR for an AP chest sitting in a wheelchair or stretcher would be an angle perpendicular to this structure. | Body of the sternum |
| The muscle located on either side of the lumbar vertebral column that helps determine proper density on an abdominal radiograph is called the: | psoas muscle |
| The gallbladder is found in which quadrant? | RUQ |
| A three way abdomen would usually include these 3 projections and/or positions. | AP supine, AP erect, and PA chest |
| The kVp range for a supine abdomen radiograph should be between: | 70-80kVp |
| What is the alternate abdominal projection or position if the patient is unable to stand for the upright abdomen? | Left Lateral Decubitus |
| What anatomy must be demonstrated on the image of an upright abdomen that is not necessary to demonstrate on a supine abdomen? | diaphragm |
| Where do you position the central ray for a supine abdomen? | CR at iliac crest |
| Where do you position the central ray for an upright abdomen? | CR 2 inches above iliac crest |
| Radiographs of the abdomen are taken on what kind of respiration? (text book answer) | expiration |
| The upright abdomen is taken with a ______ inch SID | 40 |
| What is the membranous lining called that lines the chest cavity? | Parital Pluera |
| When radiographing the elbow joint in a lateral position, it is necessary to flex the elbow how many degrees? | 90 degrees |
| The routine projections of the forearm are: | AP & Lateral |
| The external oblique position of the elbow requires a rotation of the arm of: | 40-45 degrees |
| To obtain a lateral forearm: | thumb side must be up & forearm & humerus must be in the same plane |
| To demonstrate the coronoid process of the ulna free of superimposition, which position or projection should be used? | AP oblique with medial rotation |
| To demonstrate the radial head and neck region free of superimposition, which position or projection should be used? | AP oblique with lateral rotation |
| To demonstrate the radial tuberosity free of superimposition, what position would the elbow be placed? | AP oblique with lateral rotation |
| To clearly visualize the olecranon process in profile, which position should be used? | lateral |
| The accuracy of the lateral view of the elbow is shown by superimposition of the: | epicondyles of the humerus |
| When radiographing the forearm in a lateral position, it is necessary to flex the elbow: | 90 degrees |
| For a trauma elbow where the patient is unable to extend the arm for a true AP, how many AP projections should be taken? | Two |
| For some soft tissue injuries the lateral elbow is only flexed: | 30-35 degrees |
| The centering point for an elbow is: | elbow joint |
| What position is the hand in on an AP forearm? | Supinated |
| Which position or projection of the elbow superimposes the forearm and the humerus? | AP projection; acute flexion |
| When taking a forearm on an 11 x 14, _________joints are usually visualized. | Both |
| The proximal radial ulnar joint is considered a: | pivot joint and a diarthrodial joint |
| The lesser tuberosity of the humerus is seen in profile with the arm in: | internal rotation |
| Which part of the scapula does the humerus articulate with? | glenoid fossa |
| To demonstrate the shoulder and upper humerus in the anatomic position, the arm should be placed in: | external rotation |
| The AP internal rotation of the shoulder places the humerus in the ___________ position. | Lateral |
| What is the centering point for the AP with external rotation of the shoulder? | 1" inferior to coracoids process |
| Which of the following shows the lesser tubercle in profile? | AP shoulder internal rotation |
| Another name for the inferosuperior, axial projection of the shoulder is the: | Lawrence Method |
| In the inferosuperior, axial projection of the shoulder the__________tubercle is in profile. | Lesser |
| Centering for the AP shoulder neutral rotation is: | 1" inferior to coracoid process |
| The AP shoulder, neutral rotation is done for: | trauma |
| When doing the humerus, how many joints should be demonstrated on the film? | Two |
| When doing a trauma routine for a shoulder for dislocation, what protocol would likely be performed? | AP shoulder with neutral rotation and a "Y" view |
| The centering point for a transthoracic lateral is? | The surgical neck |
| In the Grashey method (AP oblique projection of the shoulder joing), the patient is rotated: | 35 degrees toward the affected side |
| What position is the scapula in when doing a scapular "Y" projection? | Lateral |
| The Grashey Method is used to demonstrate: | profile of the glenoid cavity |
| The PA oblique projection for a hand x-ray uses a ___ degree of obliquity | 45 |
| The centering point for a PA hand projection is the _____ | 3rd MCP |
| What is the centering point for a lateral hand | 2nd MCP |
| Why are the fingers flexed for a PA wrist | reduces OID |
| What is the wrist bone that has a hook-like process | hamate |
| What is the name of the wrist bone that articulates with the first metacarpal | trapezium |
| What projection, position, method or type of exam can be done to better view the scaphoid bone free of superimposition form the remaining carpal bones | ulnar deviation |
| The ball-catcher’s position of the hands is used for the diagnosis of what disease process | rheumatoid arthritis |
| _____ deviation opens the interspaces between the carpals on the medial side of the wrist | radial |
| The thumb has how many phalanges | 2 |
| In the lateral position of the fifth digit the hand is resting on the | medial surface |
| The oblique of the finger is obtained using a ____ degree of obliquity | 45 |
| The center point for a finger (2-5) is at the | PIP |
| There are how many phalanges are in one hand | 14 |
| How many total interphalangeal joints (DIP, PIP, and IP) are in one hand | 9 |
| To position a patient for an AP projection of the thumb the patient’s hand is in | extreme internal rotation |
| From lateral to medial, list the proximal carpal bones | scaphoid, lunate, triquetrum, pisiform |
| Why is it important to radiograph hands and fingers with the fingers parallel to the film | to keep the joints open |
| What kVp or kVp range would you use to radiograph fingers, hands and wrists | 50-65 kVp |
| The ankle joint is what kind of joint? | Hinge joint (book says sellar) |
| Describe landmarks for centering for the pelvis. | 2inches above the symphysis pubis or 2inches below the ASIS or lightfield 1.5 inches below the crest. |
| Most accurate way to demonstate bone length discrempancies is with | CT scanogram (scout image) |
| Which is NOT a incomplete fracture: Torus, Greenstick, Plastic, Zero | Zero |
| Primary growth center of the bone is the | Diaphysis |
| The back of the hand is called | dorsum manus |
| high kV produces what kind of contrast and scale? | low contrast, long scale |
| What is the collimator called that automatically adjusts | positive beam limitation |
| The name of the lower concave portion of the lung is called | the base |
| The inner membrane of the chest cavity that encloses the heart and lungs | visceral pleura |
| The shortest part of the small intestine is the | duodenum |
| A 16 year old girl presents to the ER with possible kidney stones and lower right pain in the pelvis, what kind of sheilding should be used? | do not use gonadal sheilding |
| The ellipsoidal joint has movement in how many directions? | 4 |
| Why would a medial oblique be preferred over a lateral oblique for the 2nd digit of the hand? | reduce OID |
| To best demonstrate the wrist joint and intercarpal spaces what projection is best if the patient can do it? | AP |
| The projection for the Carpal canal inferior superior what is the CR angle? | 25-30 degrees |
| A radiograph show an elbow with the ulna and radius superimposed and the coranoid in profile what projection was performed? | Medial Rotation oblique |
| What is the only thing that changes for radial head projections? | hand position |
| What is the CR angle for the Scapula Y view? | no angle |
| T/F The arm should be abducted 45 degrees for an AP Scapula. | False |
| Study to compare the maternal pelvis and head of the fetus is called | pelvimetry |
| The acetabulum of the is composed of what parts of the pelvis? | ischium, illium, and pubic bone |
| What of these form the knee joint: Tibia, Fibula, Patella, Femur, Humerus? | Tibia and Femur |
| What part of a sterile gown is not considered sterile? | the back |
| Orthoroentrogram done on lower extremities can be performed if limb are less than _______difference in length. | 1 inch difference in length |
| An optimal image demonstrates what seven characteristics? | Maximum recorded detail, perfect patient positioning, excellent penetration, contrast, and density, no motion, and no removable artifacts. |
| Technical factor that is primarily used to regulate image density | mAs |
| Technical factor that is primarily used to regulate image contrast | kV |
| How will you do on the final? | Excellent |
| The fusion of the ilium, pubis, and ischium in the mid teen years takes place in the | acetabulum |
| The landmarks for the pelvis are | crest of ilium, ASIS, symphisis pubis, ischial Tuberosity, greater trochanter |
| The scacroiliac joint is a conjunction of what to parts | sacrum and the ilium |
| What parts are evaluated for rotation on a pelvis | coccyx and pubis aligned, ischial spines, obturator foramen, and greater trochanters symmetrical |
| Another name for the bilateral frog leg projection | modified cleaves method |
| The Judet method requires the body to be rotated how much | 45deg oblique |
| The most accurate method for long bone measurement is | CT scan |
| Lower limb measurements for orthoroentgenography are taken at what points | AP hip, AP knee, AP ankle |
| Upper limb measurements for orthoroentgengenography are taken at what points of the body | AP shoulder, AP elbow, AP wrist |
| On a Orthoroentgenogram if lower limb measurement is more than ____inch(es), it is recommended to do limbs separately | 1inch |
| What is a compound fracture | protrudes through the skin |
| What are some names of incomplete fractures | greenstick, Torus, plastic |
| If someone has a Potts fracture what type of radiograph would be taken | AP Ankle |
| Three rules of protection for fluoroscopy | pulse exposure for time, lead aprons for shielding, C-arm under table for distance |
| What does the term rainbow mean when controlling a C-arm | raise C-arm over patient |
| The knee joint is made up the femur and tibia that make what joint | the femorotibial joint |
| Are the collateral ligaments anterior, posterior or medial, lateral | medial lateral |
| For lateral ankle position the fibula should be seen where | posterior 1/2 of tibia |
| What type of joint is the 2cnd-5th CMC joints | plane or gliding |
| The radius only articulates with what two carpals and make up the wrist joint called | scaphoid and lunate, radiocarpal joint |
| The olecranon and the trochlear make up the elbow joint which is what type of joint | hinge-ginglymus |
| What is the angle of the tube on the carpal canal projection | 25-30deg |
| What position is the olecranon process in profile | lateral projection of the elbow |
| For an elbow exam the coronoid process is in profile with what position | medial oblique |
| What are the interchangeable names for the scapula you see in anatomical position | costal or anterior |
| What is the CR angle for the Lawrence method of the shoulder | 25-30deg |
| What projection of the shoulder demonstrate the scapulohumeral joint space | Lawrence method and Grashey |
| How much do you rotate a patient for the lateral scapula projection | 45-60deg |
| AP scapula requires a patients arm to be abducted how many degrees | 90deg |
| The vertical plane separates the body into right and left halves is called | median or mid sagital plane |
| The body plane that separates the body into anterior and posterior halves is the | mid coronal |
| What is the crest level | L4-L5 of the spine |
| Contrast is primarily controlled by | kV |
| If you use collimation you reduce | scatter radiation |
| The technique of 120kV is considered high or low, short or long scale | low contrast, long scale |
| The lower concave area of the long is called the | base of the lung |
| If you increase kV by 15%, it is just like doing what to the mAs | doubling the mAs |
Created by:
StudyGroup
Popular Radiology sets